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tree-ssa-propagate.c (add_control_edge): Print less vertical space.

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2014-05-28  Richard Biener  <rguenther@suse.de>

	* tree-ssa-propagate.c (add_control_edge): Print less vertical space.
	* tree-vrp.c (extract_range_from_ssa_name): Also copy VR_UNDEFINED.
	(vrp_visit_assignment_or_call): Print less vertical space.
	(vrp_visit_stmt): Likewise.
	(vrp_visit_phi_node): Likewise.  For a PHI argument with
	VR_VARYING range consider recording it as copy.

From-SVN: r211022
This commit is contained in:
Richard Biener 2014-05-28 14:24:09 +00:00 committed by Richard Biener
parent 47f9fca855
commit 6e5799b904
3 changed files with 37 additions and 15 deletions
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9
gcc/ChangeLog
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@ -1,3 +1,12 @@
2014-05-28 Richard Biener <rguenther@suse.de>
* tree-ssa-propagate.c (add_control_edge): Print less vertical space.
* tree-vrp.c (extract_range_from_ssa_name): Also copy VR_UNDEFINED.
(vrp_visit_assignment_or_call): Print less vertical space.
(vrp_visit_stmt): Likewise.
(vrp_visit_phi_node): Likewise. For a PHI argument with
VR_VARYING range consider recording it as copy.
2014-05-28 Richard Biener <rguenther@suse.de>
Revert

2
gcc/tree-ssa-propagate.c
View File

@ -301,7 +301,7 @@ add_control_edge (edge e)
cfg_blocks_add (bb);
if (dump_file && (dump_flags & TDF_DETAILS))
fprintf (dump_file, "Adding Destination of edge (%d -> %d) to worklist\n\n",
fprintf (dump_file, "\nAdding Destination of edge (%d -> %d) to worklist\n",
e->src->index, e->dest->index);
}

41
gcc/tree-vrp.c
View File

@ -1810,7 +1810,7 @@ extract_range_from_ssa_name (value_range_t *vr, tree var)
{
value_range_t *var_vr = get_value_range (var);
if (var_vr->type != VR_UNDEFINED && var_vr->type != VR_VARYING)
if (var_vr->type != VR_VARYING)
copy_value_range (vr, var_vr);
else
set_value_range (vr, VR_RANGE, var, var, NULL);
@ -6679,7 +6679,7 @@ vrp_visit_assignment_or_call (gimple stmt, tree *output_p)
print_generic_expr (dump_file, lhs, 0);
fprintf (dump_file, ": ");
dump_value_range (dump_file, &new_vr);
fprintf (dump_file, "\n\n");
fprintf (dump_file, "\n");
}
if (new_vr.type == VR_VARYING)
@ -7473,7 +7473,6 @@ vrp_visit_stmt (gimple stmt, edge *taken_edge_p, tree *output_p)
{
fprintf (dump_file, "\nVisiting statement:\n");
print_gimple_stmt (dump_file, stmt, 0, dump_flags);
fprintf (dump_file, "\n");
}
if (!stmt_interesting_for_vrp (stmt))
@ -8242,7 +8241,7 @@ vrp_visit_phi_node (gimple phi)
if (dump_file && (dump_flags & TDF_DETAILS))
{
fprintf (dump_file,
"\n Argument #%d (%d -> %d %sexecutable)\n",
" Argument #%d (%d -> %d %sexecutable)\n",
(int) i, e->src->index, e->dest->index,
(e->flags & EDGE_EXECUTABLE) ? "" : "not ");
}
@ -8260,16 +8259,30 @@ vrp_visit_phi_node (gimple phi)
/* Do not allow equivalences or symbolic ranges to leak in from
backedges. That creates invalid equivalencies.
See PR53465 and PR54767. */
if (e->flags & EDGE_DFS_BACK
&& (vr_arg.type == VR_RANGE
|| vr_arg.type == VR_ANTI_RANGE))
if (e->flags & EDGE_DFS_BACK)
{
vr_arg.equiv = NULL;
if (symbolic_range_p (&vr_arg))
if (vr_arg.type == VR_RANGE
|| vr_arg.type == VR_ANTI_RANGE)
{
vr_arg.type = VR_VARYING;
vr_arg.min = NULL_TREE;
vr_arg.max = NULL_TREE;
vr_arg.equiv = NULL;
if (symbolic_range_p (&vr_arg))
{
vr_arg.type = VR_VARYING;
vr_arg.min = NULL_TREE;
vr_arg.max = NULL_TREE;
}
}
}
else
{
/* If the non-backedge arguments range is VR_VARYING then
we can still try recording a simple equivalence. */
if (vr_arg.type == VR_VARYING)
{
vr_arg.type = VR_RANGE;
vr_arg.min = arg;
vr_arg.max = arg;
vr_arg.equiv = NULL;
}
}
}
@ -8288,7 +8301,7 @@ vrp_visit_phi_node (gimple phi)
{
fprintf (dump_file, "\t");
print_generic_expr (dump_file, arg, dump_flags);
fprintf (dump_file, "\n\tValue: ");
fprintf (dump_file, ": ");
dump_value_range (dump_file, &vr_arg);
fprintf (dump_file, "\n");
}
@ -8396,7 +8409,7 @@ update_range:
print_generic_expr (dump_file, lhs, 0);
fprintf (dump_file, ": ");
dump_value_range (dump_file, &vr_result);
fprintf (dump_file, "\n\n");
fprintf (dump_file, "\n");
}
return SSA_PROP_INTERESTING;